Method of supersaturating liquids



Get. 2 1f} 23.

I B. BRAZELLE METHOD OF SUiERSATURATING LIQUIDS Filed May 20. 1920 5 rare/2e Patented Oct. 2, 1923.

NlTED STATES PATENT OFFICE.

BENJAMIN BRAZELLE, 0]? LOS- ANGELES, CALIFORNIA, ASSIGNOR TO AQUAZONE LABORATORIES, INC., 0! LOS ANGELES, CALIFORNIA, A CORPORATION OF CALI- METHOD OF SUPERSATURA TING LIQUIDS.

Application filed May 20, 1920. Serial. No. 888,025.

To all whom itmmy concern:

Be it known that I, BENJAMIN BRAZELLE, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Meth': ods of Supersatnrating Liquids, of which the following is a specification.

This invention relates to a process of dissolving gases in liquids and more particularly to a process of supersaturating liquids with oxygen gas, and to the product result ing therefrom.

This 'nvention has for its object the provision of an improved sequence of steps for producing a solution of a desired gas, in an etlicient and economical manner.

knother object of this invention is to effect'the dissolving of a gas, particularly oxygen, out of a mixture of gases, such as the atmosphere, in water.

Still another object is to produce an im proved solution containing oxygen to a degree which imparts to it valuable chemical and therapeutic properties.

Other objects of this invention will in part he hereinafter specifically pointed out and in part obvious from the arrangements and constructions here set forth.

The invention accordingly com rises the several steps and the relation ant order of one or more of such steps with respect to each of the others, and the product possessing the features, properties, and the relation of constituents, which are exemplified in the following detailed disclosure, and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed descriptiontaken in connection with the accompan ing drawing in which! T e figure shown illustrates an arran ement of apparatus adapted for the practice of this invention.

Referring now to the drawing, 1 designates a tank or container which is substantially filled with a. body of water or other liquid which is to be treated to produce the desired solution. Adjacent the tank 1 there is a second tank 2 which contains a washing liquid, referably water, through which the body 0 gas to be admitted to tank 1, is

forced by the compressor 3. The compressor 3 is preferably power driven as indicated by the electric motor 4. The gas pumped by the compressor comes to it through the inlet pipe 5 leading from any in the drawing, communicates with both tanks 1 and 2. The depending lefthand branch of the pipe 15 has a. flexible connection 16 leading to the top of the tank 2 controlled by the valve 17. A flexible connection, indicated at 20, also leads from the coupling 21 in the pipe 15, and is adapted to connect with the upper end of the pipe 22 which extends into and reaches close to the bottom in the tank 1. The pipe 22 is also provided with an upturned nozzle23 at its lower end. The pipe 22 is controlled bye. valve 25. The tank 1 moreover has a connection 24 entering at the top and controlled by the valve 26.. The flexible connection 20 when desired may be disconnected from the pipe 22 and connected to the connection 24 in order to apply pressure to the surface of the liquid within the tank 1.

The pipe 15 has a valve 29 adapted normally to cut off communication between the tanks 1 and 2 and the filtration plant 7, in order that pipe 15 may serve as a. conduit for the passage of washed air from tank 2 into tank 1. Between the valve 29 and the filtration plant there is provided. a second flexible connection 28 which may be coupled to the pipe 22, when the flexible connection 20 is dlsoonnected, for the purpose of filling the tank 1 with water. Valves 19 are provided, which control the connections 18 between thefiltration plant 7 and the pipe 15. In the practice of this invent-ion, the tank 1 is preferably filled with water which has been given a preliminary treatment by passing it through the filtration plant to free ed with a controlling valve as indiit of deleterious matter: the tank being filled to within approximately 15% of its capacity. the level being! indicated in the drawings. The tank 2 having been properly filled with washing water and the pipe connections to the tanks 1 and 2 having been made as indicated in full lines in the drawing. the apparatus is ready to have the compressor l started for pumping air through the water in tank 1. Gauges at and 9 on the tanks 1 and 2 rcs 'iectively show when proper pressures have been attained. Air is pumped into the tank 1 until the gauge 8 indicates approximately [15 lbs. at which time the valve '26 on the top of the tank 1 is alternately opened and closed until the pressure has been reduced approximately to 100 lbs. The compressor 3 is operated continuously lbrougl'iout the period for which the water in the tank 1 is treated to produce the desired solution. During the period of treatment the valve 26 is opened sufficiently to maintain a head of pressure at substantially 1H0 lbs. in the tank 1. the air being passed through continuously. The duration of the treating period is approximately thirty minutes. In this manner an elastir pressure of several atmospheres. preferably in excess of four atmospheres. is maintained above the body of water being treated which produces a pressure condition favorable to the production of super-saturated solutions of oxygen gas. the gas having been selew lively dissolved from the ody of atmospheric ir pa sed through the water in tank 1. The temperature of the water being treated is preferably below 60 F.. the optimum temperature is somewhat below this. By maintaining the conditions. which as above tated are conducive to the absorption of gas. for the proper period. supersaturated solutions of oxygen in ater containin in ex ess of thirty-five cubic centim ters per liter of water may be obtained. This approximulrlv live and ne-half times the normal oxygen content found in olution in Water.

'hen the period of treatment is over the valve 26 is suddenly opened so as quickly to reduce the pres ure within the tank substantially to about 5") lbs. By this: pro ess the solution produced in the tank i brought into a ondition of stable equilibrium by permitting the volatile gas h ld in s lution to bubble oil. The Mllllllflfl resulting is quite stable and holds its oxygen in a very retentive manner for long periods of time lasting frerpu-ntly for many hours under normal atmospheric onditions.

The srilution under reduced pr ssure i non readv to brdrau'n oil. This i onvenienlly cl'ic l d by (llJOllllPPllllfl' the flcvilllc onne i n i from pipe 3'2 and connect t to he unding 3%. flexilil m nr 't on 2?. l ading to a sui -ible b ttling machine 6. is then connected to Both valves 25 and 26 are afterwa r ds opened and the compressor 3 arranged to maintain in the tank 1 the pressure of 80 lbs. The contents of the tank in this manner may be bottled or otherwise preserved in suitable vessels for commercial, industrial and therapeutic purposes. By varying the conditions of pressure and temperature. the vol nme of liquid being treated, etc.. the con ditions for producing solutionsof selectively absorbed gases in amounts other than those herein stated by way of example may be produced.

Since certain changes in carrying out the above process and retrain modifications in the product which embody this invention may he made without departing from its scope. it is intendedthat all matter contained in the above description or shown in the accompanying drawing shall be iuterpreted as illustrative and not in a limiting sense.

Having described m invention, what I claim as new and desire to secure bv Letters Patent. is:

1. The process of producing supersatw rated solutions of oxygen gas in water hit-b comprises maintaining a body of water to be treated under a substantially constant the pipe 22.

at, a determined optimum temperature. and forcing a volume of atmospheric air through while subect to said pressure for a sufficient time to secure substantially maximum oxygen air sorption. the undissolved atmospheric constituents being permitted to escape.

e process of producing supersaturated solutions of oxygen gas in water which comprises maintaining a body of water to be treated under a substantially constant pressure in excess of four times atmospheric at a determined optimum temperature. forc mg a volume of atmospheric air through said body of water while subject. to said pressure for a sullicient time to secure substantially maximum oxygen absorption. reducing the pressure at the end of the. treat mg period by substantially a fifth of that maintained during treatment. and withdrawing and sealing the solution in vessels While subject to reduced pressure.

he steps in a process of making super saturated solutions of oxygen adapted to be sealed in containers in suitable condition. ivhirh comprises producing a solution containin; substantially a maximum volume of absorbed oxygen. reducing: the pressure at the end of the treating period by substantially a Fifth of the treating pressure. and \Villl'lltlWlflQ and scaling in containers said olution While at reduced pressure.

1. The proce s of producing olutions of ovygcn gas in water which comprises pass ing a continuously traveling body of gas containing oxygen through water while subject to pressure in excess of substantially four atmospheres, agitating the same in a from deleterious matter, maintaining said y subject to a substantially constant gas pressure in excess of four atmospheres and a determined optimum temperature, and forcing a volume of atmospheric air throu h said body continuously while subject to said pressure for a sufficient time to secure substantially maximum oxygen absorption, the undissolved atmospheric constituents being permitted to escape.

6. The steps in a process of making supersaturated solutions of oxygen gas in water which comprises freein a body ter of deleterious matter, dissolving therein substantially a maximum sorbed oxygen, reducing the pressure at the end of the absorption period by substanfifth of the pressure obtaining while a sorbing oxygen, and withdrawing and bottling said solutions while at reduced pressure. 1

7. As a new product, a solution of oxygen in water, free of deleterious matter and randered stable, in which the oxygen is held retentively under normal atmospheric condicondition in amounts in excess of 35 cubic centimeters per liter.

s a new product, a supersaturated solution of oxygen gas in water, which has been freed of deleterious matter, and has been rendered stable by treatment with pressures less by a fifth than the dissolving pressure, the dissolved oxygen being held retentively under normal atmospheric conditions.

9. As a new product, a supersaturated solution of oxygen which has been rendered stable and free from deleterious matter, the

dissolved under presuauy a excess of 35 cubic centimeters per liter.

In testimony whereof I aflix my signature.

V BENJAMIN BRAZELLE. 

